{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-35879","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-17T13:50:33.111Z","datePublished":"2024-05-19T08:34:36.450Z","dateUpdated":"2026-08-05T11:30:36.996Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T11:30:36.996Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\n\nIn the following sequence:\n  1) of_platform_depopulate()\n  2) of_overlay_remove()\n\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\n  ERROR: memory leak, expected refcount 1 instead of 2 ...\n\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\n\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The vulnerable sequence is reached through local device-tree overlay teardown (driver unbind via sysfs, PCI/FPGA hot-unplug handling, DLPAR), not through any network or remote protocol input. No remote peer data reaches drivers/of/dynamic.c.\nAC:L - The devlink removal job is queued asynchronously and of_platform_depopulate() returns immediately before of_overlay_remove() runs, so the outstanding-reference condition occurs reliably (the reporter and testers hit it consistently), and the teardown can be repeated in a loop via unbind/rebind cycles.\nPR:L - No capability check guards the racy path; entry is device removal/unbind, which on embedded and hotplug-capable deployments is initiated by device events or low-privileged management paths rather than gated authentication. Choosing the higher-severity option where the privilege boundary is deployment-dependent.\nUI:N - The overlay teardown is initiated by the attacker's own action (unbind/hot-unplug) or by an autonomous device event; no separate victim needs to perform any operation.\nS:U - The corrupted objects (struct device_node, kobject refcounts, kernel heap) all live within the kernel's own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - When a leaked child node's parent device_node has already been freed, of_node_release()'s %pOF print dereferences the freed parent and its freed full_name pointer, rendering reclaimed heap contents into the kernel log — a use-after-free read of attacker-influenceable memory.\nI:H - The same path performs kobject_get()/refcount_inc() on the freed parent object, writing into memory that can be reclaimed by an attacker-sprayed allocation during the asynchronous workqueue window, giving a use-after-free write primitive.\nA:H - Every affected teardown permanently leaks device_node memory plus its properties, and the resulting refcount-0 nodes left in fwnode link lists and dangling parent pointers produce refcount_t warnings and freed-memory dereferences that oops (and panic under panic_on_warn); repeated hot-unplug cycles drive unbounded memory exhaustion."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/dynamic.c"],"versions":[{"version":"d007150b4e15bfcb8d36cfd88a5645d42e44d383","lessThan":"3127b2ee50c424a96eb3559fbb7b43cf0b111c7a","status":"affected","versionType":"git"},{"version":"80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f","lessThan":"3ee2424107546d882e1ddd75333ca9c32879908c","status":"affected","versionType":"git"},{"version":"80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f","lessThan":"7b6df050c45a1ea158fd50bc32a8e1447dd1e951","status":"affected","versionType":"git"},{"version":"80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f","lessThan":"801c8b8ec5bfb3519566dff16a5ecd48302fca82","status":"affected","versionType":"git"},{"version":"80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f","lessThan":"ae6d76e4f06c37a623e357e79d49b17411db6f5c","status":"affected","versionType":"git"},{"version":"80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f","lessThan":"8917e7385346bd6584890ed362985c219fe6ae84","status":"affected","versionType":"git"},{"version":"252c23915546863685ecc68cb3a39e7e80c6c9d4","status":"affected","versionType":"git"},{"version":"5.10.42","lessThan":"5.10.215","status":"affected","versionType":"semver"},{"version":"5.12.9","lessThan":"5.13","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/dynamic.c"],"versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","status":"unaffected","versionType":"semver"},{"version":"5.10.215","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.154","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.85","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.26","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.8.5","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.42","versionEndExcluding":"5.10.215"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.85"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.26"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.8.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a"},{"url":"https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"},{"url":"https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"},{"url":"https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"},{"url":"https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"},{"url":"https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"}],"title":"of: dynamic: Synchronize of_changeset_destroy() with the devlink removals","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-35879","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-20T15:13:02.160768Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:33:31.403Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T03:21:49.046Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]}]}]},"dataVersion":"5.2"}